# DCJ PKIClient vs MECP Certification

The clearest difference is in-app purchases: DCJ PKIClient at none against MECP Certification's 11. DCJ PKIClient also leads on iOS requirement (8.0 vs 15.2). MECP Certification's advantage is update cadence (every 3 months vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. MECP Certification sells 11 one-off in-app purchases. DCJ PKIClient asks for nothing beyond the download.

DCJ PKIClient ships an update every 8 months, MECP Certification every 3 months. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DCJ PKIClient | MECP Certification |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mecp-certification/id6479511991/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 1 MB | 110 MB |
| Requires iOS | **8.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DIGICERT, INC](https://appshunter.io/developer/1571181590) | [Certification Systems Technology Company](https://appshunter.io/developer/1736089415) |

## What reviewers say

### DCJ PKIClient

[App page](https://appshunter.io/ios/app/dcj-pkiclient/id438668674)

**Features:** macOS Compatibility

**In-app purchases:** none


### MECP Certification

[App page](https://appshunter.io/ios/app/mecp-certification/id6479511991)

Access your learning portal for mobile electronics installation courses and certification. View and complete course sections, then take your exam directly from your mobile device.

**Highlights:** Access learning portal, View available courses, Complete course sections, Take certification exam, Mobile device access

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prod Tech Specialist (1-Year) | $129.00 | one-time |
| Installation Technician Cert | $129.99 | one-time |
| Skilled Technician 1-Year | $169.00 | one-time |
| Audio Specialist (1-Year) | $169.00 | one-time |
| Sec & Conv Tech (1-Year) | $179.00 | one-time |
| Expert Install Tech (1-Year) | $229.00 | one-time |
| Skilled Install Tech (2-Year) | $329.00 | one-time |
| Audio Specialist 2 | $329.00 | one-time |
| Light Duty Fleet Cert (2-Year) | $349.00 | one-time |
| Sec & Conv Tech (2-Year) | $349.00 | one-time |
| Expert Install Tech (2-Year) | $429.00 | one-time |


## Frequently asked questions

### Is DCJ PKIClient free?

DCJ PKIClient is free to download, with no in-app purchases.

### Is MECP Certification free?

MECP Certification is free to download, with in-app purchases available.

### Do DCJ PKIClient or MECP Certification have ads?

Neither DCJ PKIClient nor MECP Certification shows ads.

### Which is updated more often, DCJ PKIClient or MECP Certification?

DCJ PKIClient ships an update every 8 months, and MECP Certification every 3 months. Most recently, DCJ PKIClient was updated on October 3, 2026 and MECP Certification on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*